“There’s no place in northern Michigan high/long enough to host the alpine skiing events...”
Build it and they will come!(?) There are probably a lot of excavators and earth movers looking for work in Lower Michigan.
You can't realistically build a mountain that would require a 2 mile run. Men's downhill courses must have a vertical drop of between 800 meters and 1,100 meters for championship and world-cup events and there is no way that can be man made on any recreation ski resort that is not in the mountains............